智能LED补光灯控制系统的设计

本科毕业论文（设计）

题目：智能LED补光灯控制系统的设

计

学院电子信息工程学院

学科门类工学

专业通信工程

学号1108431046

姓名曹方

指导教师万丽娟

2015年5月28日

随着国民经济的快速发展，科技有了长足的进步，人民在物质生活上有了充足的保障，对于自己的人生生命以及财产安全也越来越重视。在2004年的时候我国公布了中华人民共和国安防行业国家标准——《安全防范工程技术规范》，其中就提到了城市安防监控。然而，虽然有了监控系统，但是现在的监控系统还有诸多缺点，例如在夜晚，受光线的限制，致使监控图像模糊、监控目标难以辨别，严重影响了社会治安动态视频监控系统的应用成效。这就需要在夜晚或者阴雨天光线明显不足的时候，对监控对象进行补光处理，从而使监控设备和图像在光源较弱的情况下也能正常的工作，达到理想及满意的效果。本文讨论的就是通过光敏电阻感应自然光线的强度来采集数据，通过A/D转换器输入信号给单片机，再利用单片机控制LED灯珠的亮灭个数来达到智能补光的目的。

关键词:智能；LED；补光灯；单片机

With the rapid development of the national economy, science and technology have made great progress, people's material life has adequate protection for their lives and property safety of life more and more attention. In 2004, when the country announced the People's Republic of China national standard security industry "security engineering technical specifications", which mentions the urban security monitoring. However, even with the monitoring system, but now there are many shortcomings of monitoring systems, such as at night, the light is limited, resulting in blurred images monitoring, surveillance target is difficult to discern a serious impact on the effectiveness of the application of dynamic social security video surveillance system. This requires at night or rainy days when the light is obviously insufficient for monitoring objects fill light treatment, so that the monitoring equipment and the image can also work under normal light is weak, to achieve the desired and satisfactory results. This article discusses the strength of the photoresistor is induced by the natural light to collect data, through the A/D converter input signal to the microcontroller, re-use SCM control LED lamp light off number to achieve the purpose of the smart fill light.

Key Words: intelligent; LED; lights; single chip microcomputer

摘要.......................................................... I Abstract........................................................ I I 目录........................................................ I II 1.前言...................................................... I II 1.1研究背景及意义.. (1)

1.2国内外研究现状 (1)

1.3 LED补光灯的介绍 (2)

1.3.1 LED光源的产生以及发展 (2)

1.3.2 LED补光灯与智能化LED补光灯 (3)

1.4LED的原理与特性 (4)

1.5论文的主要内容 (5)

2.论文的整体设计方案 (6)

2.1整体方案简介 (6)

2.2补光灯光源的选择 (7)

2.3 LED补光灯的控制电路 (8)

3.LED补光灯控制电路的设计与制作 (9)

3.1单片机的介绍 (9)

3.2 A/D转换器的介绍 (11)

3.3整体供电电源的选择 (12)

3.4整体控制电路的设计与制作 (12)

4.实物的制作 (13)

5.总结与展望 (13)

5.1总结 (13)

5.2展望 (14)

参考文献 (15)

附录 (16)